Traditional Chinese Medicine, Explained with Evidence.

Research on Platycladi Semen has identified fatty acids, saponins, and diterpenoids with sedative and cognitive-enhancing effects in preclinical models. Clinical evidence specific to Bai Zi Ren as a whole material is limited.

Gingerols and shogaols have been reported to have gastroprotective, antiemetic, and prokinetic effects in pharmacological studies. Clinical studies have reported benefits for functional dyspepsia and nausea.

The phytochemical profile of fresh Zingiber officinale rhizome is dominated by gingerols (particularly 6-gingerol), shogaols, and volatile oils. Numerous studies have investigated ginger preparations for nausea and vomiting (including pregnancy-related, postoperative, and chemotherapy-induced), gastrointestinal motility, and anti-inflammatory effects. However, the majority of these studies evaluated standardized ginger extracts, powders, or isolated compounds — not fresh Sheng Jiang as a TCM medicinal material. Direct clinical evidence on fresh Sheng Jiang rhizome as a single agent remains limited.

Polysaccharides and triterpenoids show immunomodulatory, anti-inflammatory, and diuretic effects. Pharmacological review confirms gastrointestinal protective effects and gut microbiome modulation.

Polysaccharides have been reported to regulate gastrointestinal motility and protect the gut barrier in pharmacological studies. A comprehensive pharmacological review reported findings consistent with traditional uses for digestive dysfunction.

Research on Poria cocos triterpenoids shows sedative and GABA-modulating activity in preclinical studies. Specific research on Fu Shen (Poria with pine root) is limited; most published data evaluate Poria cocos sclerotium without pine root.